Hello !!! Can you help me
.I need an electrical circuit for remote control by cellular phone
I Have a small car and I want to do I manage the movement of the car, through mobile
Are there ideas
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Each key in the cellular telephone issued different tone. Can we convert it to orders
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Problem is that CM8870 does not exist in our country ..

Is the design draws no other alternative to this design ???????
Helpe me please !!!!!!!!!!!!!!!!!

I guess it is possible to audibly send a digital signal through the phone, but I think the solution would be somewhat complex considering the availability of better options. Have you considered using RF (Radio Frequency) modules instead to transmit signals to control the car?